Taverns

I found this recipe in a Lutheran church cookbook, and realized these sandwiches are awfully similar to Sloppy Joes Daddy likes.
Minus the onion, of course ...

2# hamburger, browned & drained
1 small yellow onion, chopped
1 can condensed tomato soup
2 T. ketchup
2 T. mustard
2 T. vinegar
1 T. sugar
Salt and pepper, to taste

Add ingredients to browned hamburger, and simmer until onions are soft.
Serve on hamburger or dollar buns.
Top with American cheese slices, if desired.

{LDM}